19 results
MRI Brain Sequence Comparison: T1 vs T2 vs FLAIR
T1:
 - CSF is Dark
 - Grey Matter
MRI Brain Sequence ... Devpriyo Pal @drdevrad ... T1 #T2 #FLAIR #MRI ... clinical #radiology #diagnosis ... #neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... Syphilis • Pyogenic Abscess ... RingEnhancing #Lesions #Brain ... #causes #radiology ... #neurology
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Causes of Seizures ... - Differential Diagnosis ... Abscess, Toxoplasmosis ... Neurocysticercosis, PML ... #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
- Differential Diagnosis ... Imaging: - MRI ... tuberculomas, or abscesses ... Demyelinating disease caused ... opportunistic #InfectiousDiseases
McDonald Criteria for Diagnosis of Multiple Sclerosis
 • 2 or more attacks, 2 or more lesions
McDonald Criteria for Diagnosis ... in space in the brain ... McDonald #Criteria #Diagnosis ... Multiple #Sclerosis #MS ... #neurology
HIV-Associated Neurocognitive Disorder (HAND)

Definition:
HIV-Associated Neurocognitive disorders categories:
• Asymptomatic neurocognitive impairment
• Mild neurocognitive impairment
• HIV dementia

Pathophysiology:
HIV frequently
and infects the CNS ... mononuclear cells in the CNS ... , but MRI will show ... Diagnosis: MRI ... dementia #AIDS #Neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
- Differential Diagnosis ... pulmonary etc) • CNS ... abscess • Toxic ... EMG) studies • MRI ... #neurology
How do you work up an ischemic CVA?
A) Initial Evaluation
 • ABCs
 • IV access, monitor
• ABCs • IV access ... brain w/o contrast ... Evaluate underlying cause ... stroke #workup #diagnosis ... #checklist #neurology
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
heart valves • MRI ... brain for cerebral ... in up to 30% of cases ... common, Aortic root abscess ... often seen • MRI
Hypertrophic Pachymeningitis - Differential Diagnosis Framework

Pachymeningitis is a rare condition that causes areas of a layer
- Differential Diagnosis ... condition that causes ... spinal cord and brain ... thickening can cause ... Pachymeningitis #HP #Neurology